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3 years ago

6

Justine is following a recipe that calls for 4 cups of lemon juice for every 3 cups of sugar. If she uses 3 cups of lemon juice,

how much sugar should she use?

2 answers:

vova2212 [387]3 years ago

6 0

Answer:

Two cups of sugar. Hope this helps!

Step-by-step explanation:

ruslelena [56]3 years ago

3 0

Answer:

.75

Step-by-step explanation:

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Someone help please I'm having a hard time understanding

Over [174]

Answer:

the angle shown is a straight angle value of which is equal to 180°

3x + 30. 6 = 180

3x = 180 - 30. 6

3x = 149.4

<h3>x = 49.8</h3>

8 0

3 years ago

Suppose that time spent on hold per call with customer service at a large telecom company is normally distributed with a mean µ

lana66690 [7]

Answer:

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8 minutes

Standard Deviation, σ = 2.5 minutes

Sample size, n = 25

We are given that the distribution of time spent is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{2.5}{\sqrt{25}} = 0.5$

P(sample mean is between 7.8 and 8.2 minutes)

$P(7.8 \leq x \leq 8.2)\\\\ = P(\displaystyle\frac{7.8 - 8}{0.5} \leq z \leq \displaystyle\frac{8.2-8}{0.5})\\\\ = P(-0.4 \leq z \leq 0.4})\\\\= P(z < 0.4) - P(z < -0.4)\\\\= 0.6554 -0.3446= 0.3108$

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

4 0

4 years ago

What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?

morpeh [17]

The equation of the line for this question can be stated as,

What does y = when x is -1 or

What does x = when y is 2

So since the slope of the line is 2, we can assume that B and C must be the answers but since you want one answer we need to be more accurate.

The answer is C

Because when y = 0 x = -1 and when y = 2 x = 0

5 0

4 years ago

Artemon [7]

Answer:

$1.40

Step-by-step explanation:

1.75-(1.75×.2)

1.75-.35

1.4

7 0

4 years ago

Read 2 more answers

Solve by using logarithms, not the same base. I have absolutely no clue how to solve so any help would be amazing, thanks

mariarad [96]

Answer:

-5/48

Step-by-step explanation:

(8 · 2⁷ˣ)⁴ = (1/16)⁵ˣ · 128

<em>Take log of both sides.</em>

log (8 · 2⁷ˣ)⁴ = log ((1/16)⁵ˣ · 128)

<em>Use log exponent/product rules.</em>

4 log (8 · 2⁷ˣ) = log (1/16)⁵ˣ + log 128

<em>Use log exponent/product rules.</em>

4 (log 8 + log (2⁷ˣ)) = 5x log (1/16) + log 128

<em>Use log exponent rule.</em>

4 (log 8 + 7x log 2) = 5x log (1/16) + log 128

<em>Distribute.</em>

4 log 8 + 28x log 2 = 5x log (1/16) + log 128

<em>Write as powers of 2.</em>

4 log 2³ + 28x log 2 = 5x log (2⁻⁴) + log 2⁷

<em>Use log exponent rule.</em>

12 log 2 + 28x log 2 = -20x log 2 + 7 log 2

<em>Combine like terms.</em>

5 log 2 + 48x log 2 = 0

<em>Divide by log 2.</em>

5 + 48x = 0

<em>Solve for x.</em>

x = -5/48

6 0

3 years ago